@Conference{liu12navigation, title = {{The role of homing in visual topological navigation}}, author = {Ming Liu and C\'edric Pradalier and Fran\c{c}ois Pomerleau and Roland Siegwart}, booktitle = {2012 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2012.(IROS 2012)}, year = {2012} }